package com.sky.aspect;

import com.sky.annotation.AutoFill;
import com.sky.constant.AutoFillConstant;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import lombok.val;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.time.LocalDateTime;

@Component
@Aspect
@Slf4j
public class AutoFillAspect {
    @Pointcut("execution(* com.sky.mapper.*.*(..)) && @annotation(com.sky.annotation.AutoFill)" )
    public void autofillpointcut(){}

    @Before("autofillpointcut()")
    public void autofull(JoinPoint joinPoint){
      log.info("连接成公");
        MethodSignature signature =(MethodSignature) joinPoint.getSignature();
        AutoFill annotation = signature.getMethod().getAnnotation(AutoFill.class);
        OperationType type = annotation.value();
//        获取参数
        Object[] args = joinPoint.getArgs();
        if(args==null||args.length==0){
            return;
        }
        Object entity = args[0];
        if (type==OperationType.INSERT){
            try {
                Method setCreateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_TIME, LocalDateTime.class);
                Method setCreateUser = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_USER, Long.class);
                Method setUpdateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                Method setUpdateUser = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);
                setCreateTime.invoke(entity,LocalDateTime.now());
                setCreateUser.invoke(entity,BaseContext.getCurrentId());
                setUpdateTime.invoke(entity,LocalDateTime.now());
                setUpdateUser.invoke(entity,BaseContext.getCurrentId());

            } catch (Exception e) {
                throw new RuntimeException(e);
            }

        } else if (type==OperationType.UPDATE) {
            try {
                Method setUpdateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                Method setUpdateUser = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);
                setUpdateTime.invoke(entity,LocalDateTime.now());
                setUpdateUser.invoke(entity,BaseContext.getCurrentId());
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

        }
    }
}
